Why did the islamist militant start graining strength in Africa

You have been tasked with sorting the rock samples shown into three categories, with two rocks in each category. what attribute would you use to sort these rocks? which rocks would be in each category? rocks: obsidian, coquina limestone, granite, soapstone,pumice, and gneiss.

What are economic benefits of building dams

Which modern technology has not made a great difference in the inuit way of life?